beyond contacts, memory, palm apps

Initially on my Treo 650 I set it up to sync with palm desktop, now using the outlook conduit and Beyond Contacts. How do I delete the data out of palm desktop and the phones task, calendar, and contacts application?

Initially on my Treo 650 I set it up to sync with palm desktop, now using the outlook conduit and Beyond Contacts. How do I delete the data out of palm desktop and the phones task, calendar, and contacts application?